<script setup>
import { ref,onMounted } from 'vue'
import {addRoleApi, queryPageApi,queryInfoApi,updateApi,deleteApi} from '@/api/role'
import { ElMessage,ElMessageBox } from 'element-plus'
//页面初始化查询
onMounted(() => {
  search()
})
// 查询参数
const queryParams = ref({
  name: '',
  label: '',
  page: 1,
  pageSize: 10
})

// 表格数据
const roleList = ref([])
const total = ref(0)

// 搜索
const search = async () => {
  const result = await queryPageApi(queryParams.value); 
  if(result.code == 1){
    roleList.value = result.data.rows;
    total.value = result.data.total;
  }
}

// 清空
const clear = () => {
  queryParams.value = {name: '',label: '',page: 1,pageSize: 10}
  search()
}

// 分页大小改变
const handleSizeChange = (val) => {
  search()
}

// 页码改变
const handleCurrentChange = (val) => {
  search()
}
// 表单校验
const roleFormRef = ref()
const rules = ref({
  name: [
    { required: true, message: '请输入角色名称', trigger: 'blur' },
    { min: 2, max: 10, message: '长度在 2 到 10 个字符', trigger: 'blur' }
  ],
  label: [
    { required: true, message: '请输入角色标识', trigger: 'blur' },
    { min: 2, max: 10, message: '长度在 2 到 10 个字符', trigger: 'blur' }
  ],
  remark: [
    { max: 50, message: '备注不能超过50个字符', trigger: 'blur' }
  ]
})

// 对话框
const formTitle = ref('')
const dialogFormVisible = ref(false)
const formLabelWidth = '100px'
const role = ref({
  name: '',
  label : ''
})
// 添加角色
const handleAdd = () => { 
  dialogFormVisible.value = true
  formTitle.value = '添加角色'
  role.value={name:'',label:'',remark:''}

  if (roleFormRef.value){ // 如果表单存在
    roleFormRef.value.resetFields()
  }
}

// 保存角色
const save = async () => { 
  roleFormRef.value.validate(async (valid) => {
    if (valid) { // 表单校验通过

      let result;
      if(role.value.id){//role有id，执行修改--id有值（并且不是o)就是true，没值或0就是false
        result = await updateApi(role.value);
      }else{
        result = await addRoleApi(role.value); 
      }
      
      if (result.code === 1) { // 成功
        ElMessage.success('保存成功');
        dialogFormVisible.value = false;
        search(); // 刷新列表
      } else { // 失败（后端返回业务错误）
        ElMessage.error(result.msg);
      }
    } else { // 表单校验失败
      ElMessage.error('请填写正确数据');
    }
  })
}

//修改角色按钮
const handleEdit =async(id)=>{
  const result= await queryInfoApi(id)
  if(result.code == 1){
    dialogFormVisible.value = true
    formTitle.value='修改角色'
    role.value=result.data

    if (roleFormRef.value){ // 如果表单存在
    roleFormRef.value.resetFields()
  }
}else{
    ElMessage.error(result.msg)
  }
}


//删除角色
const handleDelete=async(id) =>{
  ElMessageBox.confirm( '您确定要删除该角色吗?', '提示', {confirmButtonText: '确认',cancelButtonText: '取消',type: 'warning', })
    .then(async() => {//确认
     
      const result = await deleteApi(id)
    if (result.code === 1) { 
      ElMessage.success('删除成功')
      search()
    } else {
      // 增加被使用角色的提示处理
      if (result.msg.includes('正在被使用')) {
        ElMessage.error({
          message: `角色“${roleName}”正在被使用，无法删除！`,
          duration: 3000  // 3秒提示
        })
      } else {
        ElMessage.error(result.msg)
      }
    }
  })
  .catch(() => {
    ElMessage.info('已取消删除')  
  })
}

</script>

<template>
  <div class="role">
  	
    <!-- 搜索区域 -->
    <el-form :inline="true" :model="queryParams" ref="queryForm" class="search-form">
      <el-form-item label="角色名称">
        <el-input v-model="queryParams.name" placeholder="请输入角色名称"/>
      </el-form-item>
      <el-form-item label="角色标识">
        <el-input v-model="queryParams.label" placeholder="请输入角色标识"/>
      </el-form-item>
      <el-form-item class="search-buttons">
        <el-button type="primary" @click="search"><el-icon><Search /></el-icon>搜索</el-button>
        <el-button @click="clear"><el-icon><Refresh /></el-icon>清空</el-button>
      </el-form-item>
    </el-form>
    
    <!-- 操作按钮区域 -->
    <div class="operation-area">
      <el-button type="primary" @click="handleAdd"><el-icon><Plus /></el-icon>添加角色</el-button>
    </div>

    <!-- 表格区域 -->
    <el-table  :data="roleList"  style="width: 100%" border>
      <el-table-column type="index" label="序号" width="100" align="center" />
      <el-table-column prop="name" label="角色名称" width="350" align="center" />
      <el-table-column prop="label" label="角色标识" width="350" align="center" />
      <el-table-column prop="updateTime" label="最后修改时间" width="350" align="center" />
      <el-table-column label="操作" align="center">
        <template #default="scope">
          <el-button type="primary" link @click="handleEdit(scope.row.id)">
            <el-icon><Edit /></el-icon>修改
          </el-button>
          <el-button type="danger" link @click="handleDelete(scope.row.id)">
            <el-icon><Delete /></el-icon>删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页区域 -->
    <div class="pagination">
      <el-pagination
        v-model:current-page="queryParams.page"
        v-model:page-size="queryParams.pageSize"
        :page-sizes="[10, 20, 30, 40, 50]"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </div>
    <!-- 添加角色 / 修改角色 对话框 -->
    <el-dialog v-model="dialogFormVisible" :title="formTitle" width="450">
  
  <el-form :model="role" ref="roleFormRef" :rules="rules">
    <el-form-item label="角色名称" prop="name" :label-width="formLabelWidth">
      <el-input v-model="role.name" autocomplete="off"  placeholder="请输入角色名称"/>
    </el-form-item>
    <el-form-item label="角色标识" prop="label" :label-width="formLabelWidth">
      <el-input v-model="role.label" autocomplete="off"  placeholder="请输入角色标识"/>
    </el-form-item>
       <!-- 增加备注输入框 -->
       <el-form-item label="备注" prop="remark" :label-width="formLabelWidth">
          <el-input  v-model="role.remark" autocomplete="off" placeholder="请输入备注（50字以内）" type="textarea" :rows="3"/>
    </el-form-item>
  </el-form>
  <template #footer>
    <div class="dialog-footer">
      <el-button @click="dialogFormVisible = false">取消</el-button>
      <el-button type="primary" @click="save">确定</el-button>
    </div>
  </template>
</el-dialog>
  </div>
</template>



<style scoped>
.role {
  padding: 20px;
  background-color: #fff;
  min-height: 100%;
  border-radius: 8px; /* 添加圆角 */
}

.operation-area {
  margin: 20px 0;
}

.search-form {
  display: flex;
  align-items: center;
}

.search-form :deep(.el-form-item) {
  margin-right: 20px;
  min-width: 280px;
}

.search-buttons {
  margin-left: auto !important;
  min-width: auto !important;
}

.pagination {
  margin-top: 20px;
  display: flex;
  justify-content: flex-end;
}

.divider {
  height: 0.5px;
  background-color: #dcdfe6;
  margin: 10px 0;
  width: 100%;
}

:deep(.dept-dialog .el-dialog__body) {
  padding-top: 30px;
}

.dept-form {
  width: 80%;
  margin: 0 auto;
}

:deep(.el-button .el-icon) {
  margin-right: 4px;
}
</style>